Malicious PDF — malware analysis report

Static analysis result for SHA-256 e515c9937c534ad7…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 12:13:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6eea9e6a4f3ac67cfea2c28c9d858315 SHA-1: 1b2aaf107e97ed81094c404d2530e6ca541784b8 SHA-256: e515c9937c534ad70cedd8c5991f3751f39c20045a1dca8668ba1993214d0197
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-100-spin-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/officialrobuxhack-updated_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-bc-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-free-yourself-in-notorious-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/earn-robux-today-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/urban-network-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/yt-how-download-script-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-enter-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-no-human-verification-2021-pc_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-to-hack-joining-someones-server-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-do-i-get-free-robux-with-in-24-hours_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3046 23260 bytes
SHA-256: 6a9c1a57c43c445a504d8cf6f92d69b262ffeb78f65ff69e1b6276b39e3fb5ae
font_01_sfnt_off000064af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AF 18288 bytes
SHA-256: e7eedd1d7f2d1bddccca1a35bcbf42f4aa03d5dcfedc55eaf08a1a6e6f1d261c

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